QContactManagerEngine::CompareVariant() does not support QVariant::StringList

I'm using QContactManagerEngine::testFilter() to check that a contact is matching a particular QContactDetailFilter as follows:

""" Sample code """

QContact c;
QContactOrganization org;
org.setDepartment(QStringList() << "OTC" << "SSG");
c.saveDetail(&org);
QContactDetailFilter f;
f.setDetailDefinitionName(QContactOrganization::DefinitionName, QContactOrganization::FieldDepartment);
f.setMatchFlags(QContactFilter::MatchExactly);
f.setValue(QStringList() << "OTC" << "XXX");
Q_ASSERT(!QCOntactManagerEngine::testFilter(filter, c)); // HITS THE ASSERT (It shouldn't)

"""

What happens is that QContactManagerEngine::testFilter() will call QContactManagerEngine::compareVariant().
The thing is that the QContactOrganization::FieldDepartment is a QStringList and compareVariant() does not support String lists comparison and will return 0 (i.e. "are equal").

I believe that QContactManagerEngine::compareVariant() should support StringList comparison since some details' fields have this type (e.g. QContactOrganization::FieldDepartment).